Fairly sure that's a real trailer. There are semi trailers that extend out the side and sit in legs like that so you can take them onsite and use them as a temporary building with a little less than twice the space of a normal semi trailer.
Immediately jumping to each new server version and not supporting the previous one is bewildering. Admins need time to vet "upgrades" and do the actual work. Lemmy isn't one central site. Things move at different speeds and app devs need to take that into consideration.
To me it was bad and I wanted so much to like it. I can't get into why without spoilers, but it just had poor writing and fell short imo. I even liked the entire original trilogy more than others tended to past the first one. It was kind of like bad fanfiction but the boring kind of bad not the hilarious kind.